Electric generator



Nov. 6, 1928. B. P. REMY ELECTRIC GENERATOR Fild May 29. 1926 -2 Sheets-Sheet 1 Fwww INVENTOR.

fiE/VJflM/N E IPEMK A TTORNEY5.

Nov. 6, 1928.

B. P. REMY ELECTRIC GENERATOR Filed May 29. 1926 2 Sheets-Sheet INVENTOR. flf/VJflMl/V I? REM),

ATTORNEYS l0 tromotive force Patented Nov. 6, 1928.

UNITE STATE-S PATENT OFFICE.

ELECTRIC GENERATOR.

Application filed May 29.

This invention relates to a reciprocating electric generator wherein there is formed plurality of magnetic paths positioned in substantially parallel relation and a to and To movable path forming element shiftable from alignment with one of the parallelpaths to the other, whereby the flux is substantially shifted from one path to the other, thereby generating the desired elecin a winding associated a magnetic path. j

The chief objectof the invention is to provide a to and ro movable 'magnetic path forming element and means for shifting the same at different relative times with respect to the power supplying mechanism, whereby the electromotive force is generated at relatively diiieront times-with respect to'predetermined positions of the power mechanism whereby timing of the same, for example, ignition control in an internal combustion engine, is obtained.

The chief feature of the invention consists in the adjustable tuning-driving connection between the power source and the to and fro movable magnetic path forming element.

The full nature of the invention will be understood from the accompanying drawings and the following description and claims:

Fig. 1 is a side elevational view of a reciprocatory electric generator of the magneto type, parts being broken away showing other parts in section and in detail, the reciprocator being shown in the extreme retracted position and the actuating mechanism being shown in non-retracting position. Fig. 2 is a similar view of the same parts showing the same in the opposite extreme position with the actuating parts in the actuating position and immediately prior to the retraction. Fig. 3 shows the operative parts immediately following retraction. Fig. 4 is a top plan view of said parts illustrating the position thereof in Fig. 1. Fig. 5 is a View similar to Fig. 4 and of a modified form of the invention. Fig. 6 is a view similar to modified form of the invention but with the parts shown in the to that illustrated in Fig. 2. Fig. 7 is a side elevational view thereof. Fig. '8 is a top lan view of still a iurther modified form of the invention. Fig. 9 is a side elevation of parts in section of a direct and multiple c0n tact actuation. Fig. 10 is a plan view there Fig. 13 is of a jab e cam contact. Fig. tional View thereof. Fig;

. ably mounted enginei.

Fig. 3 ofa.

position corresponding 1926. Serial 1%. 112,494,

of. Fig. 11 is "an elf ation with tion of a direct contact scroll calm Fig; 12 1s a plan view of a directcontact spiral earn. an elevation'of parts in section modified scroll ea'm; Fig. I l-is a top plan view thereof. Fig. 15 is an elevation of a modified form including a slidable shifting follower. Fig/16 is a similar view'of a sliding scroll 'camconta'ct. 5F 17"is atop aspiral is a top plan'view of aspiral shift- 19 is a transverse sec- 20 is a centrarsectional view of an adjnstableiorm' ofra'i'n mounting'; 'Fig. 21 is a to plan view of a modified forznof intc'rme iate actuator.

fore pro'ceeding'to a detailed description of the toand'fro'movable mechanism and the actuation thereof, a short descriptive. r-

'sum of the type ofgenerator and parts there i of will'be I H given. r In the wing 1a indicates a I hate having a PIOJQCtTIl option 11 ,said base'being suit- Iipc'm gin 1 internal combustion Themagneto includes a magnetic conducting member 12 and a similar member LZ'joined bya similar member 14 at its upper ends. The lowerends have a'comm'on plane ortc'rminate alik'e. The bar magnets 15 16 extend from thetop to the bottom of magneto at the sides 'and'are mechanically retained in position by a strap '17. Each of the magnetic conducting. 13 alternately comprises the central anaemmon path of the magnetic circuit including all of the magnets.

Herein .the magneto includes winding 18 shown Wound upon the common magnetic path member 13. Also woundu on this member is a secondary finding 19, be primary winding 18. is connected in parallel to the condenser, 20 and is short cireuite'd by a circuit breaker having the contacts 21 and a primary parts inseccam sliding. contact.

the

22. The secondary winding 19 terminates in" the usual be suitably connected thereto, said spark plug' or spark gap. ,being inclnded in .the engine or power mechanism and igniting the exn'losive mixture therein. Each of the znagn etic lath forming members .12 and 13 provide pole faces and a magnetic core or inductor 24 completes the magnetic circuit foreach of the paths 13 and 1%.. By'shifting the in ductor or rec'iprocator from the position spark gap or sparkfip'lug and may included in the magnetic paths.

released from its actuating 25 29 Opposes the power means and :which is mounted a reciprocatory rod 27 secured tovvhich is the inductor orflux shifter A spring 28 is concentric with the stem 27 and is adapted to be compressed,therebyciishioning the travel or the re ciprocator to theright. -A

spring2,9 is concentr'icjwith the stem 27 and positioned upon the opposite side of the recipr ocatoi and is compressed the movement offitliehste m to the left 'andcushions said movement .of the reciprocator to the left When the stem is in its extreme position.

' force, to which reference will be had hereinafter, the spring 4 I 'moves the reciprocator to the right, thus Shifting the inductors position from one magnetic path to another.

The means.for ,recprocating the .stem 27 comprises an abutment otally supported member 31 maintained in engageable position by aspring, 32, said lever 31 being pivotally mounted upon shaft 33 supported by bracket 11. The lever 31 terminates .in a pair of ears 34 and'thereby forms a fork in which is mounted a pin 35 rotatably supporting roller 36. When the roller 36 is actuated to tilt lever 31 on its pivot, stem 27 is rec-iprocated or moved to the left, and when the constraining or actuating force is removed spring 29 moves all of the parts to thefright; However, in a bracket 38 carried by the magneto and pivotally supported upon the shaft 39 thereby is the lever 40 which carries one of the contacts, towit, contact 32 of the circuit breaker.

The other contact 31 is stationarily mounted in said bracket 38 at 37. The lever 40 has a contact portionor projecting end'41 engageable bythe adjustably mounted collar 42 se cured in adjusted positi0n,by, the lock nut 43 on the threaded endof the stem 27. .Thus,

when the stem is projected to the right by the spring 29 through the release or removal of the constraining. force moving or positioning said stem toward the left, the lever 40 is tilted counterclockwise to open the circuit controlled by the resultant circuit breaker. The spring 44 serves to maintain the circuit in closed circuit position until-such time as it is positively actuated and opened by the stem 27 and thus operates in timed relation with the movement of the inductor.

Transverse to the reciprocatory or plane two cams drical ca'm bod 30 carried by-a pivin Fig. 5 to the upper adequate for all practical purposes, although if desired adjustability or'variations in the timing-may; be secured through the entire range desired. After actuation the cam slips to the position shown in Fig; '3.

A second camfiiips'ee Figs; 1jto4,'has the and pinarrang ement upon'the shaft 50.' The '52 and 62jare connected together and shift-able longitudinally "upon shaft 50 eoll'ar p'ortlon 62and includes a similar slot 'throughyoke'shifter 65 having arms 66 seat able in groove 67 formed inj'the collar 52. henthe'cam s positioned in alignmentwith roller 36 andstem 2' 7, the spark desired I'will generated in advanceof that generated \fvhenthe mechanism is actuated through the cam 63, the direction' of rotation being cou'nt criclockwiseifor the shaft 50 The shaft 50, s eFig. 5, includes a cyliny 152having the groove 167 rcc'eiving'arms'fiti of yokef65i The cam portion 153 is inclined or" spiralled. The'lever having ears134 supports pini135 mounting a bevelled ca m. roller. 1%, which is engaged by,cam 1g' 3jat all times. Relief'for quick maybe secured by proreturn movement.

arciiate slot and radial jpin conviding an justment or timing of the spark ranges'frorn the initial engagement withf'the lower for ward portion of the cam surface 153 as shown backportion as shown in thesamefigure] The lever 30','Fig. engages a spiral carrying [in 51. has the arcuate slot 254 and supports the cam portion 253 having an inclined surface 255. Cam 252 includes theshafting groove 267 receiving arms 6 6 of yoke 65"for longitudinalcam moyen'i ent'. has the yol ielreceiving groove 367'and the projecting portion 353terminatingin the cam su'i'face"355,see Fig. a

In the foregoing types roller 36 or 136, is

6, icture roller 36 which cam mounted on shaft 50 not shifted longitudinally with respect to shafted but thecam is. shifted with respect to both \Vhen the follower is to be shifted'see Fig. 3 the base 1 1 supports the elongated shaft 433 whichgrotatably andslidably supports link or lever 431. Ears 434 thereof mount pin and roller 136. Link431 is, shifted longitudinally on its pivotal support hr yoke shifter 465 having arms 466 receivable "Theca'msle'eve portion 252' IOU 'The" helical cam 352 b' gram 46? 0t the jle'vferj To insure con tact of t-l1e usual red tlIejtbllitllQil't 3O is elongated transversely so jinclus'ive, illustrates the elimination of'the intermediate coi'inec'ti'on o'r "cam followerfand the-direct drive of the rod 2? liyth'eca'in 52 iii-53 and s'hi'fta'ble arrai'ige'ment whereby the cam is caused to engage rod 27. The parts are si-mi-la r13 ,munbered.

' rang; 20, wherein the sfieeve'esa p relief ee-nineties se tfforth, and mounted thereon is tlieco'liai-QGSSincluding the camera; said collar being secured tosaid F bs igsfll and T2 are's'ii'n'ilar to Figs. 6 and 7, respectfully in that they show the direct engagement of the scroll and spiral cams with the rods 27 and the omission of the intermediate contaetor or follower. The parts are similarly numbered.

Figs. 13 and 14 show the link 231 tiltabl v supported on pivot 33 and including the rod engaging abutment 230 and cam engaging portion 236, the same being substituted for the link or lever shown in Figs. 1 to 4 incinsive. This modification associated with the scroll type of cam.

A simple form of the invention see Fig. 15 comparable to that shown in Fig. 1. includes the support 231 slidably supporting the rod 236 having a projecting end 230 for engagement with rod 27. The opposite end of rod 236 engages the tiltably mounted roller. Modified forms of this simplification are illustrated in Figs. 16 and 1'? and the afore said rod 136 is interposed between the rod 27 and the actuating cam. Fig. 16 shows the scroll type of cam and Fig. 1? the spiral type cam. Parts are numbered corresponding to that in Figs. 6 and 7. The interposed sliding connection includes the abutment 130 carried by the sliding stem 13G engaged by the cam. The support 131 which slidably supports the same is in tinn siidably supported upon member 133 and the actuating portion 135 secures the sliding mov'snent. The size of the abutment. 130 is icicnt to always enstem 27 and engage the adjacent cam portion. Vith this form of the invention the follower is slidable long tudinally of the shaft axis and cam and follower have relative sliding movement, and the movable member of the pair is movable transversely of the to and fro movement. of the rod 27.

The more complicated construction includes a sleeve (see Figs. 18 and 19) having the slip relief connection previously de scribed. and incorporated in all of the cam mountings and a spiral tongue 56 1 which is receivable by spiral groove 565 formed in the collar portion 563 of cam 553. Collar portion 563 includes groove 567 receiving arms 66 of yoke shifter 65, whereby shifting axially (on shaft 50) of collar 563 on sleeve 552 secure; adjustability of the cam 553 with respect to rod 27.

Another modified form and a simple one,

inimian tie-shined weary mower "axis. This shifting varies the timing and the modification is somewhat similar to that shown in Fig. 5.

The invention claimed is:

1. In a magneto, the combination of a magnetic path forming member having to and fro movement, a spring normally moving said member in one direction, a rotating shaft, cam means operable thereby for moving the member in the opposite direction and including a plurality of angularly offset portions for timing variation, means for causing a predetermined cam portion to actuate said path forming member, and a slip relief driving connection interposed between said rotating shaft and the cam means for permitting quick return of the path forming member.

2. In a magneto, the combination of a magnetic path forming member having to and fro movement, a rotating shaft, cam means operable thereby and including a plurality of portions angularly offset from each other for selective timing actuation, and means intel-posed between said path forming member and said cam means and actuatable by the latter for causing movement of the path forming member in one direction.

3. A device as defined by claim 2, characterized by said interposed means having an irregular portion, said cam means and interposed means having relative movement therebetween for adjustable contact therebetween.

4. A device as defined by claim 2, charac terized by said interposed means having an irregular portion, said cam means and inter posed means having relative movement therebetween for adjustable contact therebetween, and said relative movement occurring parallel to the shaft axis for said adjustability.

5. A device as defined by claim 2, characterized by the addition of a slip relief driving connection interposed between said cam means and said rotating shaft permitting quick return of the path forming member.

6. A device as defined by claim 2. characterized by said interposed means and having an irregular portion. said cam means and interposed means having relative movement therebetween for adjustable contact therebetween, and further characterized by the ad dition of a. slip relief driving connection interposed between said cam means and said rotating shaft permitting quick return of the path forming member.

7. A device as defined by claim; 2, characterized by said interposed means having an irregular portion, said cam means and interposed means having relative movement therebetween for adjustable contact therebetween, and said relative movement occurring parallel to the shaft axis for said adjustability, and being further characterized by the addition of slip relief driving connection in terposed between said cam means and said rotating shaft permitting quick return of the path forming member.

8. A device as defined by claim 2, characterized by said interposed means having an irregular portion and said interposed means being mounted for movement in two transverse planes, one of which lies parallel to the shaft axis'and the other of which is transverse thereto.

In witness whereof I have hereunto aflixed my signature. I

BENJAMIN r. REMY. 

